28 NEW-YORK FAUNA. 
G. neocesariensis. (Plate 22, fig. 59.) With from fifteen to eighteen distant, conical teeth. Length 
9 — 10 feet. 
Genus Mosasaurvus, Conybeare. Teeth smooth, with two sharp crests, elevated from the jaw by an 
osseous support, pyramidal, slightly recurved, 12 — 15 on each side above and below. 
This genus was first indicated by Cuvier, and the name imposed by Conybeare on a huge fossil 
aquatic reptile, long known in the books under the name of “the Animal of Meestricht.” It was 
treated by various naturalists as a crocodile, a fish, or as a cetaceous animal. In this country, I am 
acquainted with but two localities of this fossil genus. Consult Mrrcniin, N. Y. Ed. of Cuvier’s 
Theory of the Earth; Harxan, Ac. Sc. Vol. 4, p. 235, pl. 14; De Kay, Ann. Lye. Vol. 3, p. 
135. : 
M. major. (Plate 22, figs. 57, 58.) Closely allied to the typical species. 14-15 feet long. New- 
Jersey, Alabama. 
Genus Grosaurus, Cuvier. Teeth resembling the preceding in their system of dentition, but com- 
pressed, and divided by sharp indistinctly serrated edges into two surfaces, each of which are 
subdivided into 4 — 5 facets. 
This group of large fossil reptiles has also a representative in this country. It is from the 
greensand of New-Jersey, and fragments of its remains have been described and figured by me, in 
the Annals of the Lyceum, Vol. 3, p. 138. 
G. mitchill. (Plate 22, fig. 59.) Fifteen to twenty feet long. 
FAMILY IGUANID/:. 
Small. Tongue short and thick. Teeth wn the palate. Scales on the abdomen not vmbricated. Tail 
long and slender. 
Genus ANottus, Cuvier. Head elongated. Jaws and palate with small sharp notched teeth. Tongue 
soft, fleshy, neither cleft nor extensile. Body with minute scales. Tail cylindrical, very long, 
verticillate. Skin on the penultimate joints of the fingers and toes extending into an oval disk, 
transversely striate. 
A. carolinensis. (Hoxsroox, Vol. 2, pl. 8.) Head flattened, and covered with minute scales ;_ nostrils 
distant from the end of the snout; a dilatable sac under the throat. Tail nearly twice the length 
of the body. Length 6 — 8 inches. 
FAMILY SCINCID. 
All the scales on the body and tail smooth, shining, equal, imbricated. Feet two to four, and 
with the toes very short, sometimes rudimentary. Tongue scarcely retractile. No gular 
pouch. 
Ons. Of this family, we know at present four living species in the United States, one of 
which extends to our State, and even farther east. 
